/*
 * Copyright 2019 liaochong
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.github.liaochong.myexcel.core;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

/**
 * MyExcel配置
 *
 * @author liaochong
 * @version 1.0
 */
public final class MyExcelConfiguration {

    private static Path temporaryFileDirectory;

    public static void setTemporaryFileDirectory(Path temporaryFileDirectory) {
        MyExcelConfiguration.temporaryFileDirectory = temporaryFileDirectory;
    }

    public static Path temporaryFileDirectory() {
        if (temporaryFileDirectory != null) {
            return temporaryFileDirectory;
        }
        synchronized (MyExcelConfiguration.class) {
            if (temporaryFileDirectory != null) {
                return temporaryFileDirectory;
            }
            try {
                temporaryFileDirectory = Paths.get(Paths.get(new File("").getCanonicalPath()) + "/myexcel");
                if (!temporaryFileDirectory.toFile().exists()) {
                    temporaryFileDirectory = Files.createDirectory(temporaryFileDirectory);
                }
                return temporaryFileDirectory;
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
    }
}
